참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Dimethyl Sulfate | HCID 6497 | — |
| 반응물 | Sodium Hydroxide | HCID 14798 | — |
| 반응물 | 4-Phenyl-2-pyrrolidinone | HCID 121397 | — |
| 촉매 | Tetrabutylammonium hydrogen sulfate | HCID 94433 | — |
| 용매 | Toluene | HCID 1140 | — |
| 생성물 | 1-Methyl-4-phenylpyrrolidin-2-one | HCID 12448963 | — |
반응 단계
A mixture of 4-phenyl-pyrrolidin-2-one (32.2 g; 0.2 mole), dimethyl sulfate (37.8 g; 0.3 mole), tetrabutyl ammonium hydrogensulfate (3.4 g; 0.01 mole), 50% aqueous sodium hydroxide solution (100 ml) and toluene (200 ml) is stirred at 36° C. for 5 hrs. After cooling, the aqueous phase is decanted, extracted with methylene chloride, and combined with the toluene phase. The organic phase is washed with water, dried and evaporated. The residue is distilled: b.p.0.2 mm Hg =120° C. Yield: 79%.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 특허 번호 | US04699918 |
|---|
| 출처 데이터셋 | uspto-grants-1987_10 |
|---|
| ORD ID | ord-63d01324ad06414e9de36045f1c7651d |
|---|
| 출처 메모 | uspto-grants-1987_10 |
|---|
